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Sonnax

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Sonnax

4L80E Overrun Clutch Valve Kit (1997-UP) Sonnax Smart-Tech®

MSRP:

Now: $254.95

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Sonnax

4L80E Oversized Sealing Rings (Pack of 2)

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Now: $11.95

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Sonnax

4L80E Pump Pressure Regulator Valve by Sonnax

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Now: $124.95

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Sonnax

4L80E Reverse Checkball Sleeve (1995-UP) 4-Pack
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Sonnax

4L80E Stator Support Bushing Sonnax (1 Bushing)

MSRP:

Now: $16.95

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Sonnax

4L80E Sure Cure® Kit by Sonnax (Tooling Required)

MSRP:

Now: $199.95

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Sonnax

4L80E TCC Regulator Valve Kit (1991-UP) Sonnax

MSRP:

Now: $39.95

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Sonnax

4L80E TH400 4T65E Pinion Thrust Washer - Pre-1998 (Pack of 8)

MSRP:

Now: $10.95

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Sonnax

4L80E TH400 Extreme Duty Forward Clutch Hub Kit

MSRP:

Now: $195.00

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Sonnax

4L80E TH400 Extreme Duty Main Shaft
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Sonnax

4L80E TH400 Front/Rear Unit Endplay Shim - Upgraded (Pack of 10)

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Now: $16.95

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Sonnax

4L80E TH400 HD Forward Clutch Hub Front Washer (Pack of 5) 0.078"

MSRP:

Now: $74.95

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Sonnax

4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.078''

MSRP:

Now: $29.95

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Sonnax

4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.094"

MSRP:

Now: $29.95

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Sonnax

4L80E TH400 Heavy Duty Forward Clutch Hub

MSRP:

Now: $149.95

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Sonnax

4L80E TH400 Output & Reaction Planetary Rebuild Kit (1969-1998)

MSRP:

Now: $54.95

Currently Out of Stock
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Sonnax

4L80E Wiring Harness Connector Bracket (Late Style Only)

MSRP:

Now: $9.95

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Sonnax

4R100 E4OD Bore Sizing Tool

MSRP:

Now: $99.95

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Sonnax

4R100 E4OD Center Support Ball Bearing (1995-UP)

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Now: $22.95

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Sonnax

4R100 Sonnax Shift Performance Pack

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Now: $295.00

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Sonnax

4L80E Overrun Clutch Valve Kit (1997-UP) Sonnax Smart-Tech®

4L80-E, 4L85-E Smart-Tech® Overrun Clutch Valve KitPart No. 34200-40K Fits 1997-UP Units Insufficient holding power in the overdrive roller clutch is the underlying cause of chronic...

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Now: $254.95
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Sonnax

4L80E Oversized Sealing Rings (Pack of 2)

Pack of 2 GM 4L80-E and 4L85-E forward drums are often replaced due to wear of the sealing ring bore caused by contact with the input shaft. Contact between shaft and drum occurs because of...

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Now: $11.95
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Sonnax

4L80E Pump Pressure Regulator Valve by Sonnax

The OE pressure regulator valve design prevents adequate cooler flow at low RPM and high pressure/demand conditions, which can create overheat complaints. Additionally, in '99-later vehicles, the...

MSRP:

Now: $124.95
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Sonnax

4L80E Reverse Checkball Sleeve (1995-UP) 4-Pack

4L80-E, 4L85-E Reverse Checkball SleevePart No. 34200-38 Fits units '95-later. Package Quantity: 4 Vehicles with '95-later GM 4L80-E and 4L85-E transmissions commonly exhibit wear...

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Sonnax

4L80E Stator Support Bushing Sonnax (1 Bushing)

4L80-E, 4L85-E Stator Support BushingPart No. 34016-W (You get 1 Bushing) Package Quantity: 1 GM 4L80-E and 4L85-E units may display no converter lockup or codes 68, 39, 1870 or P0741...

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Now: $16.95
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Sonnax

4L80E Sure Cure® Kit by Sonnax (Tooling Required)

4L80-E, 4L85-E The Sure Cure® KitPart No. SC-4L80E Tooling Required: 77754-TL Sonnax Sure Cure kit SC-4L80E, fully compatible with '91-later GM 4L80-E and 4L85-E units, is a...

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Now: $199.95
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Sonnax

4L80E TCC Regulator Valve Kit (1991-UP) Sonnax

4L80-E, 4L85-E TCC Regulator Valve KitPart No. 34994-01K GM vehicles equipped with 4L80-E and 4L85-E transmissions may exhibit problems such as TCC shudder, burnt converter linings, TCC...

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Now: $39.95
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Sonnax

4L80E TH400 4T65E Pinion Thrust Washer - Pre-1998 (Pack of 8)

TH400, 4L80-E, 4T65-E Pinion Thrust WasherPart No. 34875-04 For '98-earlier GM 400, 4L80-E and 4T65-E output and reaction planetaries with .750" wide pinion gears. Package...

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Now: $10.95
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Sonnax

4L80E TH400 Extreme Duty Forward Clutch Hub Kit

Sonnax extreme duty forward clutch hub kit 34322-02K is manufactured from forged 4140 steel and features nitrited and case-hardened splines to eliminate spline wear in extreme applications. Includes...

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Now: $195.00
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Sonnax

4L80E TH400 Extreme Duty Main Shaft

Main shaft failure is a common problem in extreme duty GM 400, 4L80-E and 4L85-E units. OE and aftermarket shafts simply don’t hold up in extreme horsepower applications, leading to spline...

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Sonnax

4L80E TH400 Front/Rear Unit Endplay Shim - Upgraded (Pack of 10)

It is often difficult to reduce front unit endplay on 400 or 4L80/85-E units with excessive spline wear. Normal component wear allows excess forward and direct drum travel. This travel or free-play...

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Now: $16.95
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Sonnax

4L80E TH400 HD Forward Clutch Hub Front Washer (Pack of 5) 0.078"

Pack of 5 Sonnax forward clutch hub front washer 34298-078 replaces the OE .063" thick washer between the forward clutch hub and the forward drum. It is .015" thicker than OE and is the optimal way...

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Now: $74.95
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Sonnax

4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.078''

Pack of 5 Sonnax Part Number: 34301-078 A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch,...

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Now: $29.95
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Sonnax

4L80E TH400 HD Forward Clutch Hub Washer - Rear (Pack of 5) 0.094"

A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch, bearing, and thrust washer life. Having...

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Now: $29.95
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Sonnax

4L80E TH400 Heavy Duty Forward Clutch Hub

Sonnax heavy duty forward clutch hub 34322-01 is an ideal upgrade over OE hubs in GM 400, 425, 4L80-E and 4L85-E applications. It is made from 1045 steel forging and features a thicker cross-section...

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Now: $149.95
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Sonnax

4L80E TH400 Output & Reaction Planetary Rebuild Kit (1969-1998)

Planetary Rebuild KitPart No. 34875RK Output & reaction planetaries, '69–'98 with .750" wide pinion gears Contents Pinion Pins (4) Pinion Rollers (72) Pinion Washers (8) Round...

MSRP:

Now: $54.95
Currently Out of Stock
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Sonnax

4L80E Wiring Harness Connector Bracket (Late Style Only)

4L80-E, 4L85-E Wiring Harness Connector BracketPart No. 34998-01K FITS LATE STYLE CONNECTOR ONLY!! It is common for one of the three plastic retention tabs to break on the wiring harness...

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Now: $9.95
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Sonnax

4R100 E4OD Bore Sizing Tool

4R100, E4OD Bore Sizing ToolPart No. 36948-12 Sonnax bore sizing tool 36948-12 smooths and deburrs accumulator control valve bores to permit salvage of accumulator bodies. This tool allows...

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Now: $99.95
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Sonnax

4R100 E4OD Center Support Ball Bearing (1995-UP)

4R100, E4OD Center Support Ball BearingPart No. 96423-01 The 96423-01 Center Support Ball Bearing is an OE equivalent replacement for damaged and worn center support ball bearings in the...

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Now: $22.95
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Sonnax

4R100 Sonnax Shift Performance Pack

4R100 Performance PackPart No. HP-4R100-01 Tooling Needed: 36948-12 (Recommended) T36008A (Recommended) Sonnax Performance Pack HP-4R100-01 offers innovative, heavy-duty...

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Now: $295.00
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